Undefined variables and indexes

Hi!

I have a screen like that after installation of your plugin (which I was recommended as very good one) in debug mode.

https://www.evernote.com/shard/s2/sh/0e6a0df8-76c7-45a3-b84a-1482646b371f/5fac7051652206dbe08c3878beb0cb36

Is it really so difficult to define variables and assign them a default values?

Thanks a lot for your attention

http://wordpress.org/extend/plugins/wck-custom-fields-and-custom-post-types-creator/